<?php 

$router->addRoute(
        "event_district_get", 
        new Zend_Controller_Router_Route(
            'event/district/get/:cid',    array(
                        'module' => 'event',
                        'controller' => 'district',
                        'action' => 'get',
                        'cid' => 0
                    )
            )
        );

